As computers have developed so have the "processing speed" of the machine and the ability of processor to use ram and hard -drive space to up/down load huge amounts of information at anyone time. The hard drives of machines are now used to store and retrive during the normal dtat processing time - The Hard drive no longer just acts as a store which can allow you to load in on demand only, it now is more active because of the use of virtual memory
The main network topolgies are: Bus- consist of running cables from one PC or file server to the next, like links on a chain. Ring- a continust path for dtat with no logicial beginning or ending point and thus no terminators Star- the oldest communication design method in network technology. Star- Bus Hybrid Star Ring Hybrid Mesh